CN104964806A - Suction-blowing control device of high-rise building model in wind tunnel test - Google Patents
Suction-blowing control device of high-rise building model in wind tunnel test Download PDFInfo
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- CN104964806A CN104964806A CN201510357831.9A CN201510357831A CN104964806A CN 104964806 A CN104964806 A CN 104964806A CN 201510357831 A CN201510357831 A CN 201510357831A CN 104964806 A CN104964806 A CN 104964806A
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Abstract
The invention relates to a blowing-suction control device, concretely relates to a suction-blowing control device of a high-rise building model in a wind tunnel test and relates to the civil construction field. The suction-blowing control device is aimed to achieve blowing-suction control of a high-rise building model in a wind tunnel test. Two internal pipes are arranged in a housing vertically side by side. Two suction-blowing holes are formed in the outer side wall of the housing symmetrically. The upper ends of the two internal pipes are connected with the two suction-blowing holes through two closing funnels. The lower end of each internal pipe is connected with one end of a steel wire enhanced flexible pipe through a pipeline conversion joint. The other end of each steel wire enhanced flexible pipe is connected with one end of a PVC straight pipe through a pipeline conversion joint. The other end of each PVC straight pipe is connected with a branch pipe of a three-way pipe. The main pipe of the three-way pipe is connected with a vortex air pump. A guide plate is arranged in each suction-blowing hole.
Description
Technical field
The present invention relates to one and eat suction control device, be specifically related to a kind of suction air blowing controller of wind tunnel test middle-high building model, belong to civil construction field.
Background technology
Along with high-rise building is towards more and more higher, more and more soft future development, it becomes wind sensitive structures gradually, and wind force proofing design has become the key factor needing emphasis to consider.The wind resistance improving high-rise building can adopt three kinds of measures usually, and namely improve the rigidity of structure, the damping increasing structure and pneumatic control, pneumatic control is usual compared with the above two can produce better wind resistance effect.Pneumatic control can be divided into again passive pneumatic control and active pneumatic to control.Passive pneumatic control has good wind resistance effect, but it is only effective in limited opereating specification, and is subject to the impact of flow state.In recent years, active pneumatic controls generally to be studied with its easily control property and effective advantage.Research shows, active pneumatic control can produce good control effects, especially inhales/air blowing Pneumatic Control Technology.Research shows, active pneumatic controls, and especially inhales/air blowing control technology, effectively can reduce charming appearance and behaviour resistance and the wind-excited responese of skyscraper
Summary of the invention
The present invention is that the suction air blowing realizing wind tunnel test middle-high building model controls, and then proposes a kind of blowing suction control device of model of high-rise building.
The present invention is the technical scheme taked that solves the problem: the present invention includes housing, three-way pipe, whirlpool air pump, two internal pipelines, two closing in funnels, two steel wire reinforcement flexible pipes, two PVC straight tubes, two guide plates and four pipeline X-overs, two internal pipelines are vertically arranged in housing side by side, on the lateral wall of housing, symmetry has two suction gas holes, the upper end of two internal pipelines is inhaled gas hole with two respectively by two closing in funnels and is connected, the lower end of each internal pipeline is connected with one end of a steel wire reinforcement flexible pipe respectively by a pipeline X-over, the other end of each steel wire reinforcement flexible pipe is connected with one end of a PVC straight tube respectively by a pipeline X-over, the other end of each PVC straight tube is connected with a bye-pass of three-way pipe, the main line of three-way pipe is connected with whirlpool air pump, a guide plate is respectively equipped with in each suction gas hole.
The invention has the beneficial effects as follows: the present invention utilizes suction/air blowing method to control the Flow Field of skyscraper in natural wind, reduces the wind load suffered by it and wind-excited responese.In concrete enforcement, design position and the size of suction/gas hole in advance, and monitoring system acquisition incoming flow wind speed size and Orientation is set at high-rise building top, by contrast incoming flow landscape condition and default incoming flow wind criteria for classification, determine rational suction/gas hole control program, and realized the control in flow and direction by suction/air blowing controller.The present invention can reduce charming appearance and behaviour resistance and wind-excited responese, improves wind resisting stability, can be used for the wind-tunnel investigation of the various structures such as high-rise building, bridge.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention, Fig. 2 is the perspective view of housing, Fig. 3 is the vertical view of Fig. 2, the vertical view of Fig. 2 when Fig. 4 is guide plate inclination, Fig. 5 is the front view of whirlpool air pump, Fig. 6 is the left view of Fig. 5, and Fig. 7 is the position of opening planimetric map of skyscraper suction/gas hole, and Fig. 8 is model down wind resistance coefficient and the substrate bending moment coefficients situation of change figure along with air-breathing speed.
Embodiment
Embodiment one: composition graphs 1 to Fig. 6 illustrates present embodiment, described in present embodiment, a kind of suction air blowing controller of wind tunnel test middle-high building model comprises housing 1, three-way pipe 4, whirlpool air pump 5, two internal pipelines 2, two closing in funnels 3, two steel wire reinforcement flexible pipes 6, two PVC straight tubes 7, two guide plates 8 and four pipeline X-overs 9, two internal pipelines 2 are vertically arranged in housing 1 side by side, on the lateral wall of housing 1, symmetry has two suction gas hole 1-1, the upper end of two internal pipelines 2 is inhaled gas hole 1-1 with two respectively by two closing in funnels 3 and is connected, the lower end of each internal pipeline 2 is connected with one end of a steel wire reinforcement flexible pipe 6 respectively by a pipeline X-over 9, the other end of each steel wire reinforcement flexible pipe 6 is connected with one end of a PVC straight tube 7 respectively by a pipeline X-over 9, the other end of each PVC straight tube 7 is connected with a bye-pass 4-1 of three-way pipe 4, the main line 4-2 of three-way pipe 4 is connected with whirlpool air pump 5, a guide plate 8 is respectively equipped with in each suction gas hole 1-1.
In present embodiment, vortex pump 5 connecting tee pipe 4 is divided into two parts air-flow, shows the flow of two pipelines and control flow by respective flowrate control valve 11 by vortex shedding flow meter 10.In order to the precision of guaranteed flow meter, the PVC straight tube 7 of certain length is set in flowmeter upstream, then connects steel wire reinforcement flexible pipe 6 link model internal pipeline again.Model internal pipeline leading to model lower part and be connected with steel wire reinforcement flexible pipe in suction/gas hole altitude range after infundibulate closes up.Suction/air blowing the angle of leading to internal pipeline at suction/gas hole can be regulated by guide plate.
Embodiment two: composition graphs 1 to Fig. 5 illustrates present embodiment, each PVC straight tube 7 of a kind of suction air blowing controller of wind tunnel test middle-high building model described in present embodiment is equipped with a vortex shedding flow meter 10 and a flowrate control valve 11.Other composition and annexation identical with embodiment one.
Principle of work
Composition graphs 7 illustrates principle of work of the present invention
First incoming flow wind speed and direction is obtained at the multiple air velocity transducer of high-rise building top layout; Then contrast with the wind speed and direction criteria for classification preset, determine whether that needs carry out inhaling/blow control, and rational suction/gas hole folding scheme, suction/air blowing flow and direction.If wind direction is positioned at a-quadrant, 2 and 7 suctions/gas hole need be opened, other bore closures; If wind direction is positioned at B region, 1 and 4 suctions/gas hole need be opened, other bore closures; If the region of wind direction between AB, 4 and 7 suctions/gas hole need be opened, other bore closures.
Embodiment one:
By designing in advance, suction/gas hole is positioned at edge 10%D place in face of crosswind, and reference altitude is model vertices At The Height.Fig. 6 is model down wind resistance coefficient and the down wind substrate bending moment coefficients situation of change along with air-breathing speed, and horizontal ordinate is air-breathing speed, and ordinate is down wind resistance coefficient and substrate bending moment coefficients.When air-breathing speed is 9.3m/s, resistance coefficient can reduction 26%.
Claims (2)
1. the suction air blowing controller of a wind tunnel test middle-high building model, it is characterized in that: the suction air blowing controller of described a kind of wind tunnel test middle-high building model comprises housing (1), three-way pipe (4), whirlpool air pump (5), two internal pipelines (2), two closing in funnels (3), two steel wire reinforcement flexible pipes (6), two PVC straight tubes (7), two guide plates (8) and four pipeline X-overs (9), two internal pipelines (2) are vertically arranged in housing (1) side by side, on the lateral wall of housing (1), symmetry has two suctions gas hole (1-1), the upper end of two internal pipelines (2) is inhaled gas hole (1-1) respectively by two closing in funnels (3) and is connected with two, the lower end of each internal pipeline (2) is connected with one end of a steel wire reinforcement flexible pipe (6) respectively by a pipeline X-over (9), the other end of each steel wire reinforcement flexible pipe (6) is connected with one end of a PVC straight tube (7) respectively by a pipeline X-over (9), the other end of each PVC straight tube (7) is connected with a bye-pass (4-1) of three-way pipe (4), the main line (4-2) of three-way pipe (4) is connected with whirlpool air pump (5), a guide plate (8) is respectively equipped with in each suction gas hole (1-1).
2. the suction air blowing controller of a kind of wind tunnel test middle-high building model according to claim 1, is characterized in that: each PVC straight tube (7) is equipped with a vortex shedding flow meter (10) and a flowrate control valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357831.9A CN104964806A (en) | 2015-06-25 | 2015-06-25 | Suction-blowing control device of high-rise building model in wind tunnel test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510357831.9A CN104964806A (en) | 2015-06-25 | 2015-06-25 | Suction-blowing control device of high-rise building model in wind tunnel test |
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| CN104964806A true CN104964806A (en) | 2015-10-07 |
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| CN201510357831.9A Pending CN104964806A (en) | 2015-06-25 | 2015-06-25 | Suction-blowing control device of high-rise building model in wind tunnel test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890868A (en) * | 2015-12-09 | 2016-08-24 | 哈尔滨工业大学 | Adjustable kilometer-level super high-rise building aeroelectric model and manufacturing method thereof |
Citations (3)
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| CN1851436A (en) * | 2006-05-31 | 2006-10-25 | 汕头大学 | Big-span roof and super high-rise building structure wind vibration response detecting and computing method |
| CN201867298U (en) * | 2010-11-18 | 2011-06-15 | 西南交通大学 | Section model air hole test equipment for combined structural object |
| CN102589838A (en) * | 2012-02-15 | 2012-07-18 | 浙江大学 | Internal air-supported rigidity simulation device for wind tunnel test model of single story building |
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2015
- 2015-06-25 CN CN201510357831.9A patent/CN104964806A/en active Pending
Patent Citations (3)
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|---|---|---|---|---|
| CN1851436A (en) * | 2006-05-31 | 2006-10-25 | 汕头大学 | Big-span roof and super high-rise building structure wind vibration response detecting and computing method |
| CN201867298U (en) * | 2010-11-18 | 2011-06-15 | 西南交通大学 | Section model air hole test equipment for combined structural object |
| CN102589838A (en) * | 2012-02-15 | 2012-07-18 | 浙江大学 | Internal air-supported rigidity simulation device for wind tunnel test model of single story building |
Non-Patent Citations (3)
| Title |
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| 任凯: ""上部吸气控制下超高层建筑的风荷载特性研究"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 冯畅达: ""超高层建筑风荷载风致响应的吹气控制研究"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 郑朝荣: ""高层建筑风荷载吸/吹气控制的数值模拟研究"", 《中国博士学位论文全文数据库 工程科技II辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105890868A (en) * | 2015-12-09 | 2016-08-24 | 哈尔滨工业大学 | Adjustable kilometer-level super high-rise building aeroelectric model and manufacturing method thereof |
| CN105890868B (en) * | 2015-12-09 | 2018-10-02 | 哈尔滨工业大学 | A kind of adjustable km grade high-rise building air spring pole and production method |
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Application publication date: 20151007 |